Laserfiche WebLink
. •, <br /> Makeup Air Opening Table for New and Existtng pwelling <br /> Table 501.3.2 <br /> One or mulUpte power One or multiple fan- � Dne atmosphentalty l Muitiple a!mcsphericatiy ! <br /> � verK,direct vent assisted appliances ano ; vented gas o�o't 1 venceC gas or pi' Duu diameter <br /> ; appt�ances,or no power vent or direct '. appliance er one solid � appiiantes or snlid fuei <br /> � comDustiO�appliances vent appliarxes ' fuel appliance ' app iances <br /> , x <br /> Coiumn A Co�umn B Co4umn C Golumn D � <br /> PassiveoPening 1-36 3-22 , 1-:S I-y , 3---; <br /> Pass+ve open:ng 37-66 23-41 <br /> 16-28 � 10-.7 , 4 <br /> Dauive opening 6i-109 42-66 I 2g_46 18-28 5 <br /> PassroecPening ;10-163 67-10d 47-69 � 29-42 6 <br /> I <br /> Pass�ve oPenin 164-Z32 SO3-143 7D-94 � 43-61 , 7 -' <br /> ' Passrve ope�in 233-317 744-195 : 100-235 52-83 ! g .�� ' <br /> Passrve ope�ing � 318-419 i i96-Z58 ' 136-?79 j 84-130 9 <br /> w/motorized damper � � ' <br /> Passrve oPenmg 42Q�-539-��`-� 259-332 � :80-23G ! 11`-142 :0 <br /> w/motori2ed damper � ; ' " <br /> � Pass Ive openin� 544-679 333-419 I 231-290 143-179 11 , <br /> wJmotorized dam er <br /> �owered makeup a�r s679 >41g I >Z90 n:7g NA <br /> Notes: <br /> A. An eqwualeni iength of lp0 F�t of ro�nd smooth meta!durt�s assumed. Subtratt 30 fee:rc�,he exteror naod and ten Fee:for earn 90•degree elbow to <br /> determ�ne the remaining iength of scraight duct ailowable. <br /> 8. If flexible du:t is used,�nc*ease the dua diameter by one mch Flexibk dud sna l be stretched witn minimat sags. Compressea dud shalt not be accepted. <br /> C. Barometric dampen are Rrohibded in passive makeup air opening5 when any atmosphencslly ve^tea app��ance�s nstailec. <br /> D. Powerea makeup air sh;0 be eiectricaily interlacked with the largest exhaust s�stem. <br /> Sedion F <br /> Combustion air � "" <br /> � Not reeuired pe.m+.-chanical corle(No atmospheric or power vented appfiances� <br /> �( Dassive�see IFGC Appendlx E,Worksheet E�21 Size and type 6�' �..t y� <br /> Other,describe: - ____ _ _ <br /> � <br /> Explanntion-If no armospheric or power vented app/ipnces are rnsiolled,chetk[he approprrafe box,not requrred. !f a pawe� <br /> vented or atmospherically vented opp/ionce installed,use IFGCAppendix E, Workshee!E-1(see below). Please enter sire and type. <br /> Combustion air vent supplies must communicofe wiih the eppiionce or appliances chat require the cambustian air. <br /> Seclion F cplculations foilow on the next 2 pages. <br /> G:\Forms\VentMakJpC.omoA�rCals�i1511.do:u Page�i af 6 <br />